A male with 4 Y-chromosomes.
D000293:Adolescent; D001919:Bradycardia; D002386:Cataract; D005147:Facial Bones / Q000002:abnormalities; D005385:Fingers / Q000002:abnormalities; D005826:Genetics, Medical; D006326:Heart Auscultation; D006801:Humans; D006965:Hyperplasia; D007248:Infertility, Male; D008607:Intellectual Disability; D007621:Karyotyping; D007985:Leydig Cells; D008297:Male; D011123:Polyploidy; D012729:Sex Chromosome Aberrations; D013094:Spermatozoa; D013737:Testis / Q000473:pathology